ok this topic doesn't have anything to do with computers but just check the link out.

***********.gloryroad.net/illusion.swf

Go to the link above, and look at the picture. You will see what
appears to be a normal apartment-sized dining room. Focus your
eyes on the clear bowl that sits on the table. There are two
little blue dots on the bowl. The trick is to let your eyes kind
of fall into a relaxed trance on them. The temptation is to want
to look out the windows behind the table, but don't do that!
Keep focusing on the bowl. It took me about half a minute to get
to the point at which I could keep my eyes from drifting. Stay
focused I promise it will become clear. It may take a little
while, but don't give up it is worth it. Oh yeah.....turn your sound
way the hell up............